<?php

/**
  ============================================================
 * Last committed:      $Revision: 115 $
 * Last changed by:     $Author: fire $
 * Last changed date:   $Date: 2013-02-08 18:27:29 +0200 (ïåò, 08 ôåâð 2013) $
 * ID:                  $Id: mobile.class.php 115 2013-02-08 16:27:29Z fire $
  ============================================================
  Copyright Angel Zaprianov [2009] [INFOHELP]
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
  http://www.apache.org/licenses/LICENSE-2.0
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
 * --------------------------------------
 *       See COPYRIGHT and LICENSE
 * --------------------------------------
 * 
 * @filesource Main Dollop
 * @package dollop kernel
 * @subpackage class
 * 
 */

/**
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 *
 * @author      Serban Ghita <serbanghita@gmail.com>
 *              Victor Stanciu <vic.stanciu@gmail.com> (until v.1.0)
 * @copyright   2012 Serban Ghita.
 * @license     http://www.opensource.org/licenses/mit-license.php  MIT License
 * @link        http://mobiledetect.net
  Google Code Repository: http://code.google.com/p/php-mobile-detect/
  GitHub Repository: https://github.com/serbanghita/Mobile-Detect
 * @version     2.1 RC2
 */
class Mobile_Detect {

    // External info.
    protected $userAgent = null;
    protected $httpHeaders;
    // Arrays holding all detection rules.
    protected $mobileDetectionRules = null;
    protected $mobileDetectionRulesExtended = null;
    // Type of detection to use.
    protected $detectionType = 'mobile'; // mobile, extended @todo: refactor this.
    // List of mobile devices (phones)
    protected $phoneDevices = array(
        'iPhone' => '(iPhone.*Mobile|iPod|iTunes)',
        'BlackBerry' => 'BlackBerry|rim[0-9]+',
        'HTC' => 'HTC|HTC.*(6800|8100|8900|A7272|S510e|C110e|Legend|Desire|T8282)|APX515CKT|Qtek9090|APA9292KT|HD_mini|Sensation.*Z710e',
        'Nexus' => 'Nexus One|Nexus S|Galaxy.*Nexus|Android.*Nexus.*Mobile',
        'Dell' => 'Dell.*Streak|Dell.*Aero|Dell.*Venue|DELL.*Venue Pro|Dell Flash|Dell Smoke|Dell Mini 3iX|XCD28|XCD35',
        'Motorola' => 'Motorola|\bDroid\b.*Build|DROIDX|HRI39|MOT-|A1260|A1680|A555|A853|A855|A953|A955|A956|Motorola.*ELECTRIFY|Motorola.*i1|i867|i940|MB200|MB300|MB501|MB502|MB508|MB511|MB520|MB525|MB526|MB611|MB612|MB632|MB810|MB855|MB860|MB861|MB865|MB870|ME501|ME502|ME511|ME525|ME600|ME632|ME722|ME811|ME860|ME863|ME865|MT620|MT710|MT716|MT720|MT810|MT870|MT917|Motorola.*TITANIUM|WX435|WX445|XT300|XT301|XT311|XT316|XT317|XT319|XT320|XT390|XT502|XT530|XT531|XT532|XT535|XT603|XT610|XT611|XT615|XT681|XT701|XT702|XT711|XT720|XT800|XT806|XT860|XT862|XT875|XT882|XT883|XT894|XT909|XT910|XT912|XT928',
        'Samsung' => 'Samsung|BGT-S5230|GT-B2100|GT-B2700|GT-B2710|GT-B3210|GT-B3310|GT-B3410|GT-B3730|GT-B3740|GT-B5510|GT-B5512|GT-B5722|GT-B6520|GT-B7300|GT-B7320|GT-B7330|GT-B7350|GT-B7510|GT-B7722|GT-B7800|GT-C3010|GT-C3011|GT-C3060|GT-C3200|GT-C3212|GT-C3212I|GT-C3222|GT-C3300|GT-C3300K|GT-C3303|GT-C3303K|GT-C3310|GT-C3322|GT-C3330|GT-C3350|GT-C3500|GT-C3510|GT-C3530|GT-C3630|GT-C3780|GT-C5010|GT-C5212|GT-C6620|GT-C6625|GT-C6712|GT-E1050|GT-E1070|GT-E1075|GT-E1080|GT-E1081|GT-E1085|GT-E1087|GT-E1100|GT-E1107|GT-E1110|GT-E1120|GT-E1125|GT-E1130|GT-E1160|GT-E1170|GT-E1175|GT-E1180|GT-E1182|GT-E1200|GT-E1210|GT-E1225|GT-E1230|GT-E1390|GT-E2100|GT-E2120|GT-E2121|GT-E2152|GT-E2220|GT-E2222|GT-E2230|GT-E2232|GT-E2250|GT-E2370|GT-E2550|GT-E2652|GT-E3210|GT-E3213|GT-I5500|GT-I5503|GT-I5700|GT-I5800|GT-I5801|GT-I6410|GT-I6420|GT-I7110|GT-I7410|GT-I7500|GT-I8000|GT-I8150|GT-I8160|GT-I8320|GT-I8330|GT-I8350|GT-I8530|GT-I8700|GT-I8703|GT-I8910|GT-I9000|GT-I9001|GT-I9003|GT-I9010|GT-I9020|GT-I9023|GT-I9070|GT-I9100|GT-I9103|GT-I9220|GT-I9250|GT-I9300|GT-I9300 |GT-M3510|GT-M5650|GT-M7500|GT-M7600|GT-M7603|GT-M8800|GT-M8910|GT-N7000|GT-P6810|GT-P7100|GT-S3110|GT-S3310|GT-S3350|GT-S3353|GT-S3370|GT-S3650|GT-S3653|GT-S3770|GT-S3850|GT-S5210|GT-S5220|GT-S5229|GT-S5230|GT-S5233|GT-S5250|GT-S5253|GT-S5260|GT-S5263|GT-S5270|GT-S5300|GT-S5330|GT-S5350|GT-S5360|GT-S5363|GT-S5369|GT-S5380|GT-S5380D|GT-S5560|GT-S5570|GT-S5600|GT-S5603|GT-S5610|GT-S5620|GT-S5660|GT-S5670|GT-S5690|GT-S5750|GT-S5780|GT-S5830|GT-S5839|GT-S6102|GT-S6500|GT-S7070|GT-S7200|GT-S7220|GT-S7230|GT-S7233|GT-S7250|GT-S7500|GT-S7530|GT-S7550|GT-S8000|GT-S8003|GT-S8500|GT-S8530|GT-S8600|SCH-A310|SCH-A530|SCH-A570|SCH-A610|SCH-A630|SCH-A650|SCH-A790|SCH-A795|SCH-A850|SCH-A870|SCH-A890|SCH-A930|SCH-A950|SCH-A970|SCH-A990|SCH-I100|SCH-I110|SCH-I400|SCH-I405|SCH-I500|SCH-I510|SCH-I515|SCH-I600|SCH-I730|SCH-I760|SCH-I770|SCH-I830|SCH-I910|SCH-I920|SCH-LC11|SCH-N150|SCH-N300|SCH-R100|SCH-R300|SCH-R351|SCH-R400|SCH-R410|SCH-T300|SCH-U310|SCH-U320|SCH-U350|SCH-U360|SCH-U365|SCH-U370|SCH-U380|SCH-U410|SCH-U430|SCH-U450|SCH-U460|SCH-U470|SCH-U490|SCH-U540|SCH-U550|SCH-U620|SCH-U640|SCH-U650|SCH-U660|SCH-U700|SCH-U740|SCH-U750|SCH-U810|SCH-U820|SCH-U900|SCH-U940|SCH-U960|SCS-26UC|SGH-A107|SGH-A117|SGH-A127|SGH-A137|SGH-A157|SGH-A167|SGH-A177|SGH-A187|SGH-A197|SGH-A227|SGH-A237|SGH-A257|SGH-A437|SGH-A517|SGH-A597|SGH-A637|SGH-A657|SGH-A667|SGH-A687|SGH-A697|SGH-A707|SGH-A717|SGH-A727|SGH-A737|SGH-A747|SGH-A767|SGH-A777|SGH-A797|SGH-A817|SGH-A827|SGH-A837|SGH-A847|SGH-A867|SGH-A877|SGH-A887|SGH-A897|SGH-A927|SGH-B100|SGH-B130|SGH-B200|SGH-B220|SGH-C100|SGH-C110|SGH-C120|SGH-C130|SGH-C140|SGH-C160|SGH-C170|SGH-C180|SGH-C200|SGH-C207|SGH-C210|SGH-C225|SGH-C230|SGH-C417|SGH-C450|SGH-D307|SGH-D347|SGH-D357|SGH-D407|SGH-D415|SGH-D780|SGH-D807|SGH-D980|SGH-E105|SGH-E200|SGH-E315|SGH-E316|SGH-E317|SGH-E335|SGH-E590|SGH-E635|SGH-E715|SGH-E890|SGH-F300|SGH-F480|SGH-I200|SGH-I300|SGH-I320|SGH-I550|SGH-I577|SGH-I600|SGH-I607|SGH-I617|SGH-I627|SGH-I637|SGH-I677|SGH-I700|SGH-I717|SGH-I727|SGH-I777|SGH-I780|SGH-I827|SGH-I847|SGH-I857|SGH-I896|SGH-I897|SGH-I900|SGH-I907|SGH-I917|SGH-I927|SGH-I937|SGH-I997|SGH-J150|SGH-J200|SGH-L170|SGH-L700|SGH-M110|SGH-M150|SGH-M200|SGH-N105|SGH-N500|SGH-N600|SGH-N620|SGH-N625|SGH-N700|SGH-N710|SGH-P107|SGH-P207|SGH-P300|SGH-P310|SGH-P520|SGH-P735|SGH-P777|SGH-Q105|SGH-R210|SGH-R220|SGH-R225|SGH-S105|SGH-S307|SGH-T109|SGH-T119|SGH-T139|SGH-T209|SGH-T219|SGH-T229|SGH-T239|SGH-T249|SGH-T259|SGH-T309|SGH-T319|SGH-T329|SGH-T339|SGH-T349|SGH-T359|SGH-T369|SGH-T379|SGH-T409|SGH-T429|SGH-T439|SGH-T459|SGH-T469|SGH-T479|SGH-T499|SGH-T509|SGH-T519|SGH-T539|SGH-T559|SGH-T589|SGH-T609|SGH-T619|SGH-T629|SGH-T639|SGH-T659|SGH-T669|SGH-T679|SGH-T709|SGH-T719|SGH-T729|SGH-T739|SGH-T746|SGH-T749|SGH-T759|SGH-T769|SGH-T809|SGH-T819|SGH-T839|SGH-T919|SGH-T929|SGH-T939|SGH-T959|SGH-T989|SGH-U100|SGH-U200|SGH-U800|SGH-V205|SGH-V206|SGH-X100|SGH-X105|SGH-X120|SGH-X140|SGH-X426|SGH-X427|SGH-X475|SGH-X495|SGH-X497|SGH-X507|SGH-X600|SGH-X610|SGH-X620|SGH-X630|SGH-X700|SGH-X820|SGH-X890|SGH-Z130|SGH-Z150|SGH-Z170|SGH-ZX10|SGH-ZX20|SHW-M110|SPH-A120|SPH-A400|SPH-A420|SPH-A460|SPH-A500|SPH-A560|SPH-A600|SPH-A620|SPH-A660|SPH-A700|SPH-A740|SPH-A760|SPH-A790|SPH-A800|SPH-A820|SPH-A840|SPH-A880|SPH-A900|SPH-A940|SPH-A960|SPH-D600|SPH-D700|SPH-D710|SPH-D720|SPH-I300|SPH-I325|SPH-I330|SPH-I350|SPH-I500|SPH-I600|SPH-I700|SPH-L700|SPH-M100|SPH-M220|SPH-M240|SPH-M300|SPH-M305|SPH-M320|SPH-M330|SPH-M350|SPH-M360|SPH-M370|SPH-M380|SPH-M510|SPH-M540|SPH-M550|SPH-M560|SPH-M570|SPH-M580|SPH-M610|SPH-M620|SPH-M630|SPH-M800|SPH-M810|SPH-M850|SPH-M900|SPH-M910|SPH-M920|SPH-M930|SPH-N100|SPH-N200|SPH-N240|SPH-N300|SPH-N400|SPH-Z400|SWC-E100',
        'Sony' => 'E10i|SonyEricsson|SonyEricssonLT15iv',
        'Asus' => 'Asus.*Galaxy',
        'Palm' => 'PalmSource|Palm', // avantgo|blazer|elaine|hiptop|plucker|xiino ; @todo - complete the regex.
        'Vertu' => 'Vertu|Vertu.*Ltd|Vertu.*Ascent|Vertu.*Ayxta|Vertu.*Constellation(F|Quest)?|Vertu.*Monika|Vertu.*Signature', // Just for fun ;)
        'GenericPhone' => 'PDA;|PPC;|SAGEM|mmp|pocket|psp|symbian|Smartphone|smartfon|treo|up.browser|up.link|vodafone|wap|nokia|Series40|Series60|S60|SonyEricsson|N900|MAUI.*WAP.*Browser|LG-P500'
    );
    // List of tablet devices.
    protected $tabletDevices = array(
        'BlackBerryTablet' => 'PlayBook|RIM Tablet',
        'iPad' => 'iPad|iPad.*Mobile', // @todo: check for mobile friendly emails topic.
        'NexusTablet' => '^.*Android.*Nexus(?:(?!Mobile).)*$',
        'Kindle' => 'Kindle|Silk.*Accelerated',
        'SamsungTablet' => 'SAMSUNG.*Tablet|Galaxy.*Tab|GT-P1000|GT-P1010|GT-P6210|GT-P6800|GT-P6810|GT-P7100|GT-P7300|GT-P7310|GT-P7500|GT-P7510|SCH-I800|SCH-I815|SCH-I905|SGH-I957|SGH-I987|SGH-T849|SGH-T859|SGH-T869|SPH-P100|GT-P1000|GT-P3100|GT-P3110|GT-P5100|GT-P5110|GT-P6200|GT-P7300|GT-P7320|GT-P7500|GT-P7510|GT-P7511',
        'HTCtablet' => 'HTC Flyer|HTC Jetstream|HTC-P715a|HTC EVO View 4G|PG41200',
        'MotorolaTablet' => 'xoom|sholest|MZ615|MZ605|MZ505|MZ601|MZ602|MZ603|MZ604|MZ606|MZ607|MZ608|MZ609|MZ615|MZ616|MZ617',
        'AsusTablet' => 'Transformer|TF101',
        'NookTablet' => 'Android.*Nook|NookColor|nook browser|BNTV250A|LogicPD Zoom2',
        'AcerTablet' => 'Android.*\b(A100|A101|A200|A500|A501|A510|W500|W500P|W501|W501P)\b',
        'YarvikTablet' => 'Android.*(TAB210|TAB211|TAB224|TAB250|TAB260|TAB264|TAB310|TAB360|TAB364|TAB410|TAB411|TAB420|TAB424|TAB450|TAB460|TAB461|TAB464|TAB465|TAB467|TAB468)',
        'MedionTablet' => 'Android.*\bOYO\b|LIFE.*(P9212|P9514|P9516|S9512)|LIFETAB',
        'ArnovaTablet' => 'AN10G2|AN7bG3|AN7fG3|AN8G3|AN8cG3|AN7G3|AN9G3|AN7dG3|AN7dG3ST|AN7dG3ChildPad|AN10bG3|AN10bG3DT',
        // @reference: http://wiki.archosfans.com/index.php?title=Main_Page
        'ArchosTablet' => 'Android.*ARCHOS|101G9|80G9',
        // @reference: http://en.wikipedia.org/wiki/NOVO7
        'AinolTablet' => 'NOVO7|Novo7Aurora|Novo7Basic|NOVO7PALADIN',
        // @todo: inspect http://esupport.sony.com/US/p/select-system.pl?DIRECTOR=DRIVER
        'SonyTablet' => 'Sony Tablet|Sony Tablet S',
        'GenericTablet' => 'Tablet(?!.*PC)|ViewPad7|LG-V909|MID7015|BNTV250A|LogicPD Zoom2|\bA7EB\b|CatNova8|A1_07|CT704|CT1002|\bM721\b|hp-tablet',
    );
    // List of mobile Operating Systems.
    protected $operatingSystems = array(
        'AndroidOS' => 'Android',
        'BlackBerryOS' => 'blackberry|rim tablet os',
        'PalmOS' => 'PalmOS|avantgo|blazer|elaine|hiptop|palm|plucker|xiino',
        'SymbianOS' => 'Symbian|SymbOS|Series60|Series40|SYB-[0-9]+|\bS60\b',
        // @reference: http://en.wikipedia.org/wiki/Windows_Mobile
        'WindowsMobileOS' => 'Windows CE.*(PPC|Smartphone|Mobile|[0-9]{3}x[0-9]{3})|Window Mobile|Windows Phone [0-9.]+|WCE;',
        // @reference: http://en.wikipedia.org/wiki/Windows_Phone
        // http://wifeng.cn/?r=blog&a=view&id=106
        // http://nicksnettravels.builttoroam.com/post/2011/01/10/Bogus-Windows-Phone-7-User-Agent-String.aspx
        'WindowsPhoneOS' => 'Windows Phone OS|XBLWP7|ZuneWP7',
        'iOS' => 'iphone|ipod|ipad',
        'FlashLiteOS' => '',
        // http://en.wikipedia.org/wiki/MeeGo
        // @todo: research MeeGo in UAs
        'MeeGoOS' => 'MeeGo',
        // http://en.wikipedia.org/wiki/Maemo
        // @todo: research Maemo in UAs
        'MaemoOS' => 'Maemo',
        'JavaOS' => 'J2ME/MIDP|Java/',
        'webOS' => 'webOS|hpwOS',
        'badaOS' => '\bBada\b',
        'BREWOS' => 'BREW',
    );
    // List of mobile User Agents.
    protected $userAgents = array(
        // https://developers.google.com/chrome/mobile/docs/user-agent
        'Chrome' => '\bCrMo\b|Android.*Chrome/[.0-9]* (?!Mobile)|CriOS',
        'Dolfin' => '\bDolfin\b',
        'Opera' => 'Opera.*Mini|Opera.*Mobi|Android.*Opera',
        'Skyfire' => 'Skyfire',
        'IE' => 'IEMobile|MSIEMobile',
        'Firefox' => 'fennec|firefox.*maemo|(Mobile|Tablet).*Firefox|Firefox.*Mobile',
        'Bolt' => 'bolt',
        'TeaShark' => 'teashark',
        'Blazer' => 'Blazer',
        // @reference: http://developer.apple.com/library/safari/#documentation/AppleApplications/Reference/SafariWebContent/OptimizingforSafarioniPhone/OptimizingforSafarioniPhone.html#//apple_ref/doc/uid/TP40006517-SW3
        'Safari' => 'Version.*Mobile.*Safari|Safari.*Mobile',
        'Midori' => 'midori',
        'Tizen' => 'Tizen',
        'UCBrowser' => 'UC Browser|UCWEB',
        // @reference: http://en.wikipedia.org/wiki/Minimo
        // http://en.wikipedia.org/wiki/Vision_Mobile_Browser
        'GenericBrowser' => 'NokiaBrowser|OviBrowser|SEMC.*Browser|FlyFlow|Minimo|NetFront|Novarra-Vision'
    );
    // Utilities.
    protected $utilities = array(
        'WebKit' => '(webkit)[ /]([\w.]+)',
        'Bot' => 'Googlebot|DoCoMo|YandexBot|bingbot|ia_archiver|AhrefsBot|Ezooms|GSLFbot|WBSearchBot|Twitterbot|TweetmemeBot|Twikle|PaperLiBot|Wotbox|UnwindFetchor|facebookexternalhit',
        'MobileBot' => 'Googlebot-Mobile|DoCoMo|YahooSeeker/M1A1-R2D2',
    );

    // Properties list.
    // @reference: http://user-agent-string.info/list-of-ua#Mobile Browser

    const VER = '([\w._]+)';

    protected $properties = array(
        // Build
        'Mobile' => 'Mobile/[VER]',
        'Build' => 'Build/[VER]',
        'Version' => 'Version/[VER]',
        'VendorID' => 'VendorID/[VER]',
        // Devices
        'iPad' => 'iPad.*CPU[a-z ]+[VER]',
        'iPhone' => 'iPhone.*CPU[a-z ]+[VER]',
        'iPod' => 'iPod.*CPU[a-z ]+[VER]',
        //'BlackBerry'    => array('BlackBerry[VER]', 'BlackBerry [VER];'),
        'Kindle' => 'Kindle/[VER]',
        // Browser
        'Chrome' => 'Chrome/[VER]',
        'CriOS' => 'CriOS/[VER]',
        'Dolfin' => 'Dolfin/[VER]',
        'Firefox' => 'Firefox/[VER]',
        'Fennec' => 'Fennec/[VER]',
        'IEMobile' => array('IEMobile/[VER];', 'IEMobile [VER]'),
        'MSIE' => 'MSIE [VER];',
        // http://en.wikipedia.org/wiki/NetFront
        'NetFront' => 'NetFront/[VER]',
        'NokiaBrowser' => 'NokiaBrowser/[VER]',
        'Opera' => 'Version/[VER]',
        'Opera Mini' => 'Opera Mini/[VER]',
        'Opera Mobi' => 'Version/[VER]',
        'UC Browser' => 'UC Browser[VER]',
        'Safari' => 'Version/[VER]',
        'Skyfire' => 'Skyfire/[VER]',
        'Tizen' => 'Tizen/[VER]',
        'Webkit' => 'webkit[ /][VER]',
        // Engine
        'Gecko' => 'Gecko/[VER]',
        'Trident' => 'Trident/[VER]',
        'Presto' => 'Presto/[VER]',
        // OS
        'Android' => 'Android [VER]',
        'BlackBerry' => array('BlackBerry[\w]+/[VER]', 'BlackBerry.*Version/[VER]'),
        'BREW' => 'BREW [VER]',
        'Java' => 'Java/[VER]',
        // @reference: http://windowsteamblog.com/windows_phone/b/wpdev/archive/2011/08/29/introducing-the-ie9-on-windows-phone-mango-user-agent-string.aspx
        // @reference: http://en.wikipedia.org/wiki/Windows_NT#Releases
        'Windows Phone OS' => 'Windows Phone OS [VER]',
        'Windows Phone' => 'Windows Phone [VER]',
        'Windows CE' => 'Windows CE/[VER]',
        // http://social.msdn.microsoft.com/Forums/en-US/windowsdeveloperpreviewgeneral/thread/6be392da-4d2f-41b4-8354-8dcee20c85cd
        'Windows NT' => 'Windows NT [VER]',
        'Symbian' => array('SymbianOS/[VER]', 'Symbian/[VER]'),
        'webOS' => array('webOS/[VER]', 'hpwOS/[VER];'),
    );

    function __construct() {

        $this->setHttpHeaders();
        $this->setUserAgent();

        $this->setMobileDetectionRules();
        $this->setMobileDetectionRulesExtended();
    }

    public function setHttpHeaders($httpHeaders = null) {

        if (!empty($httpHeaders)) {
            $this->httpHeaders = $httpHeaders;
        } else {
            foreach ($_SERVER as $key => $value) {
                if (substr($key, 0, 5) == 'HTTP_') {
                    $this->httpHeaders[$key] = $value;
                }
            }
        }
    }

    public function setUserAgent($userAgent = null) {

        if (!empty($userAgent)) {
            $this->userAgent = $userAgent;
        } else {
            $this->userAgent = isset($this->httpHeaders['HTTP_USER_AGENT']) ? $this->httpHeaders['HTTP_USER_AGENT'] : null;

            if (empty($this->userAgent)) {
                $this->userAgent = isset($this->httpHeaders['HTTP_X_DEVICE_USER_AGENT']) ? $this->httpHeaders['HTTP_X_DEVICE_USER_AGENT'] : null;
            }
            // Header can occur on devices using Opera Mini (can expose the real device type). Let's concatenate it (we need this extra info in the regexes).
            if (!empty($this->httpHeaders['HTTP_X_OPERAMINI_PHONE_UA'])) {
                $this->userAgent += ' ' . $this->httpHeaders['HTTP_X_OPERAMINI_PHONE_UA'];
            }
        }
    }

    function setDetectionType($type = null) {

        $this->detectionType = (!empty($type) ? $type : 'mobile');
    }

    /**
     * Method sets the mobile detection rules.
     *
     * This method is used for the magic methods $detect->is*()
     */
    public function setMobileDetectionRules() {
        // Merge all rules together.
        $this->mobileDetectionRules = array_merge(
                $this->phoneDevices, $this->tabletDevices, $this->operatingSystems, $this->userAgents
        );
    }

    /**
     * Method sets the mobile detection rules + utilities.
     * The reason this is separate is because utilities rules
     * don't necessary imply mobile.
     *
     * This method is used inside the new $detect->is('stuff') method.
     *
     * @return bool
     */
    public function setMobileDetectionRulesExtended() {

        // Merge all rules together.
        $this->mobileDetectionRulesExtended = array_merge(
                $this->phoneDevices, $this->tabletDevices, $this->operatingSystems, $this->userAgents, $this->utilities
        );
    }

    /**
     * @return array
     */
    public function getRules() {

        if ($this->detectionType == 'extended') {
            return $this->mobileDetectionRulesExtended;
        } else {
            return $this->mobileDetectionRules;
        }
    }

    /**
     * Check the HTTP headers for signs of mobile.
     * This is the fastest mobile check possible; it's used
     * inside isMobile() method.
     * @return boolean
     */
    public function checkHttpHeadersForMobile() {

        if (
                isset($this->httpHeaders['HTTP_ACCEPT']) &&
                (strpos($this->httpHeaders['HTTP_ACCEPT'], 'application/x-obml2d') !== false || // Opera Mini; @reference: http://dev.opera.com/articles/view/opera-binary-markup-language/
                strpos($this->httpHeaders['HTTP_ACCEPT'], 'application/vnd.rim.html') !== false || // BlackBerry devices.
                strpos($this->httpHeaders['HTTP_ACCEPT'], 'text/vnd.wap.wml') !== false ||
                strpos($this->httpHeaders['HTTP_ACCEPT'], 'application/vnd.wap.xhtml+xml') !== false) ||
                isset($this->httpHeaders['HTTP_X_WAP_PROFILE']) ||
                isset($this->httpHeaders['HTTP_X_WAP_CLIENTID']) ||
                isset($this->httpHeaders['HTTP_WAP_CONNECTION']) ||
                isset($this->httpHeaders['HTTP_PROFILE']) ||
                isset($this->httpHeaders['HTTP_X_OPERAMINI_PHONE_UA']) || // Reported by Nokia devices (eg. C3)
                isset($this->httpHeaders['HTTP_X_NOKIA_IPADDRESS']) ||
                isset($this->httpHeaders['HTTP_X_NOKIA_GATEWAY_ID']) ||
                isset($this->httpHeaders['HTTP_X_ORANGE_ID']) ||
                isset($this->httpHeaders['HTTP_X_VODAFONE_3GPDPCONTEXT']) ||
                isset($this->httpHeaders['HTTP_X_HUAWEI_USERID']) ||
                isset($this->httpHeaders['HTTP_UA_OS']) || // Reported by Windows Smartphones.
                isset($this->httpHeaders['HTTP_X_MOBILE_GATEWAY']) || // Reported by Verizon, Vodafone proxy system.
                ( isset($this->httpHeaders['HTTP_UA_CPU']) &&
                $this->httpHeaders['HTTP_UA_CPU'] == 'ARM'          // Seen this on a HTC.
                )
        ) {

            return true;
        }

        return false;
    }

    /**
     * Magic overloading method.
     *
     * @method boolean is[...]()
     * @param string $name
     * @param array $arguments
     * @return mixed
     */
    public function __call($name, $arguments) {

        $this->setDetectionType('mobile');

        $key = substr($name, 2);
        return $this->matchUAAgainstKey($key);
    }

    /**
     * Find a detection rule that matches the current User-agent.
     *
     * @param null $userAgent deprecated
     * @return boolean
     */
    private function matchDetectionRulesAgainstUA($userAgent = null) {

        // Begin general search.
        foreach ($this->getRules() as $_regex) {
            if (empty($_regex)) {
                continue;
            }
            if ($this->match($_regex, $userAgent)) {
                //var_dump( $_regex );
                return true;
            }
        }

        return false;
    }

    /**
     * Search for a certain key in the rules array.
     * If the key is found the try to match the corresponding
     * regex agains the User-agent.
     *
     * @param string $key
     * @param null $userAgent deprecated
     * @return mixed
     */
    private function matchUAAgainstKey($key, $userAgent = null) {

        // Make the keys lowercase so we can match: isIphone(), isiPhone(), isiphone(), etc.
        $key = strtolower($key);
        $_rules = array_change_key_case($this->getRules());

        if (array_key_exists($key, $_rules)) {
            if (empty($_rules[$key])) {
                return null;
            }
            return $this->match($_rules[$key], $userAgent);
        }

        return false;
    }

    /**
     * Check if the device is mobile.
     * Returns true if any type of mobile device detected, including special ones
     * @param null $userAgent deprecated
     * @param null $httpHeaders deprecated
     * @return bool
     */
    public function isMobile($userAgent = null, $httpHeaders = null) {

        if ($httpHeaders) {
            $this->setHttpHeaders($httpHeaders);
        }
        if ($userAgent) {
            $this->setUserAgent($userAgent);
        }

        $this->setDetectionType('mobile');

        if ($this->checkHttpHeadersForMobile()) {
            return true;
        } else {
            return $this->matchDetectionRulesAgainstUA();
        }
    }

    /**
     * Check if the device is a tablet.
     * Return true if any type of tablet device is detected.
     *
     * @param null $userAgent deprecated
     * @param null $httpHeaders deprecated
     * @return bool
     */
    public function isTablet($userAgent = null, $httpHeaders = null) {

        $this->setDetectionType('mobile');

        foreach ($this->tabletDevices as $_regex) {
            if ($this->match($_regex, $userAgent)) {
                return true;
            }
        }

        return false;
    }

    /**
     * This method checks for a certain property in the
     * userAgent.
     * @todo: The httpHeaders part is not yet used.
     *
     * @param $key
     * @param string $userAgent deprecated
     * @param string $httpHeaders deprecated
     * @return bool|int|null
     */
    public function is($key, $userAgent = null, $httpHeaders = null) {


        // Set the UA and HTTP headers only if needed (eg. batch mode).
        if ($httpHeaders)
            $this->setHttpHeaders($httpHeaders);
        if ($userAgent)
            $this->setUserAgent($userAgent);

        $this->setDetectionType('extended');

        return $this->matchUAAgainstKey($key);
    }

    public function getOperatingSystems() {

        return $this->operatingSystems;
    }

    /**
     * Some detection rules are relative (not standard),
     * because of the diversity of devices, vendors and
     * their conventions in representing the User-Agent or
     * the HTTP headers.
     *
     * This method will be used to check custom regexes against
     * the User-Agent string.
     *
     * @param $regex
     * @param string $userAgent
     * @return bool
     *
     * @todo: search in the HTTP headers too.
     */
    function match($regex, $userAgent = null) {

        // Escape the special character which is the delimiter.
        $regex = str_replace('/', '\/', $regex);

        return (bool) preg_match('/' . $regex . '/is', (!empty($userAgent) ? $userAgent : $this->userAgent));
    }

    /**
     * Get the properties array.
     * @return array
     */
    function getProperties() {

        return $this->properties;
    }

    /**
     * Prepare the version number.
     *
     * @param $ver
     * @return int
     */
    function prepareVersionNo($ver) {

        $ver = str_replace(array('_', ' ', '/'), array('.', '.', '.'), $ver);
        $arrVer = explode('.', $ver, 2);
        $arrVer[1] = @str_replace('.', '', $arrVer[1]); // @todo: treat strings versions.
        $ver = (float) implode('.', $arrVer);

        return $ver;
    }

    /**
     * Check the version of the given property in the User-Agent.
     * Will return a float number. (eg. 2_0 will return 2.0, 4.3.1 will return 4.31)
     *
     * @param string $propertyName
     * @return mixed $version
     */
    function version($propertyName) {

        $properties = $this->getProperties();

        // If the property is found in the User-Agent then move to the next step.
        if (stripos($this->userAgent, $propertyName) !== false) {

            // Prepare the pattern to be matched.
            // Make sure we always deal with an array (string is converted).
            $properties[$propertyName] = (array) $properties[$propertyName];

            foreach ($properties[$propertyName] as $propertyMatchString) {

                $propertyPattern = str_replace('[VER]', self::VER, $propertyMatchString);

                // Escape the special character which is the delimiter.
                $propertyPattern = str_replace('/', '\/', $propertyPattern);

                // Identify and extract the version.
                preg_match('/' . $propertyPattern . '/is', $this->userAgent, $match);

                if (!empty($match[1])) {
                    $version = $this->prepareVersionNo($match[1]);
                    return $version;
                }
            }

            return 0;
        }

        return false;
    }

    function mobileGrade() {

        $isMobile = $this->isMobile();

        if (
        // Apple iOS 3.2-5.1 - Tested on the original iPad (4.3 / 5.0), iPad 2 (4.3), iPad 3 (5.1), original iPhone (3.1), iPhone 3 (3.2), 3GS (4.3), 4 (4.3 / 5.0), and 4S (5.1)
                $this->version('iPad') >= 4.3 ||
                $this->version('iPhone') >= 3.1 ||
                $this->version('iPod') >= 3.1 ||
                // Android 2.1-2.3 - Tested on the HTC Incredible (2.2), original Droid (2.2), HTC Aria (2.1), Google Nexus S (2.3). Functional on 1.5 & 1.6 but performance may be sluggish, tested on Google G1 (1.5)
                // Android 3.1 (Honeycomb)  - Tested on the Samsung Galaxy Tab 10.1 and Motorola XOOM
                // Android 4.0 (ICS)  - Tested on a Galaxy Nexus. Note: transition performance can be poor on upgraded devices
                // Android 4.1 (Jelly Bean)  - Tested on a Galaxy Nexus and Galaxy 7
                ( $this->version('Android') > 2.1 && $this->is('Webkit') ) ||
                // Windows Phone 7-7.5 - Tested on the HTC Surround (7.0) HTC Trophy (7.5), LG-E900 (7.5), Nokia Lumia 800
                $this->version('Windows Phone OS') >= 7.0 ||
                // Blackberry 7 - Tested on BlackBerry® Torch 9810
                // Blackberry 6.0 - Tested on the Torch 9800 and Style 9670
                $this->version('BlackBerry') >= 6.0 ||
                // Blackberry Playbook (1.0-2.0) - Tested on PlayBook
                $this->match('Playbook.*Tablet') ||
                // Palm WebOS (1.4-2.0) - Tested on the Palm Pixi (1.4), Pre (1.4), Pre 2 (2.0)
                ( $this->version('webOS') >= 1.4 && $this->match('Palm|Pre|Pixi') ) ||
                // Palm WebOS 3.0  - Tested on HP TouchPad
                $this->match('hp.*TouchPad') ||
                // Firefox Mobile (12 Beta) - Tested on Android 2.3 device
                ( $this->is('Firefox') && $this->version('Firefox') >= 12 ) ||
                // Chrome for Android - Tested on Android 4.0, 4.1 device
                ( $this->is('Chrome') && $this->is('AndroidOS') && $this->version('Android') >= 4.0 ) ||
                // Skyfire 4.1 - Tested on Android 2.3 device
                ( $this->is('Skyfire') && $this->version('Skyfire') >= 4.1 && $this->is('AndroidOS') && $this->version('Android') >= 2.3 ) ||
                // Opera Mobile 11.5-12: Tested on Android 2.3
                ( $this->is('Opera') && $this->version('Opera Mobi') > 11 && $this->is('AndroidOS') ) ||
                // Meego 1.2 - Tested on Nokia 950 and N9
                $this->is('MeeGoOS') ||
                // Tizen (pre-release) - Tested on early hardware
                $this->is('Tizen') ||
                // Samsung Bada 2.0 - Tested on a Samsung Wave 3, Dolphin browser
                // @todo: more tests here!
                $this->is('Dolfin') && $this->version('Bada') >= 2.0 ||
                // UC Browser - Tested on Android 2.3 device
                ( ($this->is('UC Browser') || $this->is('Dolfin')) && $this->version('Android') >= 2.3 ) ||
                // Kindle 3 and Fire  - Tested on the built-in WebKit browser for each
                ( $this->match('Kindle Fire') ||
                $this->is('Kindle') && $this->version('Kindle') >= 3.0 ) ||
                // Nook Color 1.4.1 - Tested on original Nook Color, not Nook Tablet
                $this->is('AndroidOS') && $this->is('NookTablet') ||
                // Chrome Desktop 11-21 - Tested on OS X 10.7 and Windows 7
                $this->version('Chrome') >= 11 && !$isMobile ||
                // Safari Desktop 4-5 - Tested on OS X 10.7 and Windows 7
                $this->version('Safari') >= 5.0 && !$isMobile ||
                // Firefox Desktop 4-13 - Tested on OS X 10.7 and Windows 7
                $this->version('Firefox') >= 4.0 && !$isMobile ||
                // Internet Explorer 7-9 - Tested on Windows XP, Vista and 7
                $this->version('MSIE') >= 7.0 && !$isMobile ||
                // Opera Desktop 10-12 - Tested on OS X 10.7 and Windows 7
                // @reference: http://my.opera.com/community/openweb/idopera/
                $this->version('Opera') >= 10 && !$isMobile
        ) {
            return 'A';
        }

        if (
        // Blackberry 5.0: Tested on the Storm 2 9550, Bold 9770
                $this->version('BlackBerry') >= 5 && $this->version('BlackBerry') < 6 ||
                //Opera Mini (5.0-6.5) - Tested on iOS 3.2/4.3 and Android 2.3
                ( $this->version('Opera Mini') >= 5.0 && $this->version('Opera Mini') <= 6.5 &&
                ($this->version('Android') >= 2.3 || $this->is('iOS')) ) ||
                // Nokia Symbian^3 - Tested on Nokia N8 (Symbian^3), C7 (Symbian^3), also works on N97 (Symbian^1)
                $this->match('NokiaN8|NokiaC7|N97.*Series60|Symbian/3') ||
                // @todo: report this (tested on Nokia N71)
                $this->version('Opera Mobi') >= 11 && $this->is('SymbianOS')
        ) {
            return 'B';
        }

        if (
        // Blackberry 4.x - Tested on the Curve 8330
                $this->version('BlackBerry') < 5.0 ||
                // Windows Mobile - Tested on the HTC Leo (WinMo 5.2)
                $this->match('MSIEMobile|Windows CE.*Mobile') || $this->version('Windows Mobile') <= 5.2
        ) {

            return 'C';
        }

        // All older smartphone platforms and featurephones - Any device that doesn't support media queries will receive the basic, C grade experience
        return 'C';
    }

}